I just checked out our guild page. I haven't been on all day but it still shows my character as logged in.
Yesterday my computer crashed while I was on. Could that have something to do with it?

It's still showing me as logged in. Maybe it's just not updating?

Mine appears to be working correctly. Are you sure you aren't looking at a cached version of the webpage?

Nah ..that was my first thought too. Force reloading didn't help and I checked on another computer too.